Telephone distinguishing means



April 16, 1935- M. M. ALTOONIAN TELEPHONE DI STINGUI SHING MEANS Filed May 10, 1954 CONVE/VT/0NAL TELEPHONE CIRCUIT Patented Apr. 16, 1935 PATENT OFFME TELEPHONE DISTINGUISHING MEANS Mihran M. Altoonian,

Jackson Heights, N. Y.

Application May 10, 1934, Serial No. 724,994

3 Claims.

This invention relates to a means associated with a telephone to indicate the ringing of the bell thereof, to the end that such telephone, especially where it is used adjacent other telephones, so that the telephone on which there is a call may be readily ascertained.

It is aimed to provide a novel means which is operable in the electric circuit of the telephone which includes the bell, to the end that when the bell is energized, the distinguishing means will also be energized.

The more specific objects and advantages will in part be pointed out and otherwise become apparent from a consideration of the description following taken in connection with accompanying drawing illustrating an operative embodiment.

In said drawing:-

Figure 1 is a View in front elevation showing a telephone of the French type, embodying. my improvement;

Figure 2 is a cross sectional view taken on the line 2-2 of Figure 1;

Figure 3 is a cross sectional view taken on the line 33 of Figure 2;

Figure 4 is a detail of the distinguishing means and circuit therefor; and

Figure 5 is a side elevation of an ordinary telephone embodying my improvement.

Referring specifically to the drawing wherein like reference characters designate like or similar parts, l 9 designates the arm of a French telephone embodying the transmitter H and receiver E2, the arm being supported on the usual pedestal or stand l3.

On the arm I 8 is secured a plate M, for instance, by means of screws l5 so that it may be detached when desired. Centrally of the plate I4 is a depending tube It in which an indicator element l! is normally retracted as shown in full lines in Figures 1 and 2 and which is adapted to be projected tothe dotted line position when the bell of the telephone rings to indicate a call. This indicating or distinguishing plunger H has a pin is projecting therethrough and sliding in vertical elongated slots It in the wall of cylinder it, by means 01 which, the plunger I! is held against accidental detachment.

A suitable bracket 26 is fastened at 2! within the arm l0 and mounts a pair of diverging electromagnets 22 having slidable cores 23. Levers 24 are pivoted at 25 to depending lugs 25 on the plate I 4, having free ends extending below and engaging the lower end of the plunger ll, upward movement of the levers being accommodated in slots 21 in said sleeve I 6. Links 28 are pivoted at 29 to the cores 23, and at 38 to said levers 24.

The invention is capable of use in any conventional telephone circuit as at 3| wherein the bell 32 which rings when central makes a call, and which circuit also includes the windings or" the electromagnets 22. Y

Normally the indicator ll is retracted in full lines as best illustrated in Figures 1 and 2. Upon the operator or central closing the circuit 31 through the bell 32 to indicate the call, the circuit also is closed through the solenoids 22, retracting the armatures 23 and moving the links 28 and levers 24, thereby projecting the indicator I1 to the dotted line position, shown in Figures 1 and 2. This projection of the indicator I? shows which particular telephone the call is on and is especially useful where there are a number of telephones arranged close together. Of course when the circuit is again opened through the bell 32, the magnets 22 will become deenergized and by gravity, the links 28, levers 24 and indicator I! will return to normal retracted position.

The invention is not limited to use in a French telephone, but may be used in one of the ordinary type as illustrated in Figure 5, the same reference characters as far as the invention is concerned being used in Figure 5 as in the other figures.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:-

1. In combination with a telephone and the ringing circuit for the bell thereof, and means in said circuit operable through the closing thereof to ring the bell, to distinguish the telephone from another, said means being mounted on the telephone, said means including a normally retracted slidably mounted element, a lever in engagement with said element, said circuit including an electromagnet, a movable core for said magnet, and a link connecting from said core with said lever, whereby the energization of the magnet will slidably project said element.

2. In combination with a telephone and the ringing circuit for the bell thereof, means in said circuit operable through the closing thereof to ring the bell, to distinguish the telephone from another, said means being mounted on the telephone, said means including a normally retracted element, a lever in engagement with said element, said circuit including an electromagnet, a core for said magnet, a connection from said core to said lever, whereby the energization of the magnet will project said element, a plate to which said lever is pivoted, and a sleeve depending from said plate in which the element is slidably mounted.

3. In combination with a telephone and the ringing circuit for the bell thereof, means in said circuit operable through the closing thereof to ring the bell, to distinguish the telephone from another, said means being mounted on the telephone, said means including a normally retraeted element, a lever in engagement with said element, said circuit including an electromagnet, a core for said magnet, a connection from said core to said lever, whereby the energization of the magnet will project said element, a plate to which said lever is pivoted, a sleeve depending from said plate in which the element is slidably mounted, a pin and slot connection between the sleeve and element, said sleeve having a slot in which the lever operates, and a bracket mounting the electromagnet.

MIHRAN M. ALTOONIAN. 

